E21B 47/008
Monitoring of down-hole pump systems
Official title: Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
E21B47/008 (Monitoring of down-hole pump systems) appears on 714 US grants and 761 published applications in this corpus.
Search patents in E21B- Granted patents
- 714
- Published applications
- 761
- Assignees
- 286
- Inventors
- 1,437
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 6 | 6 |
| 2003 | 11 | 10 |
| 2004 | 1 | 5 |
| 2005 | 6 | 11 |
| 2006 | 8 | 14 |
| 2007 | 5 | 12 |
| 2008 | 7 | 7 |
| 2009 | 4 | 11 |
| 2010 | 9 | 17 |
| 2011 | 10 | 9 |
| 2012 | 13 | 15 |
| 2013 | 13 | 20 |
| 2014 | 11 | 20 |
| 2015 | 17 | 44 |
| 2016 | 20 | 39 |
| 2017 | 27 | 72 |
| 2018 | 42 | 47 |
| 2019 | 68 | 55 |
| 2020 | 53 | 65 |
| 2021 | 52 | 59 |
| 2022 | 48 | 47 |
| 2023 | 60 | 46 |
| 2024 | 42 | 47 |
| 2025 | 51 | 48 |
| 2026 | 27 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Integrating domain knowledge with machine learning to optimize electrical submersible pump performance22 Sep 2026US 12,742,379 B2Schlumberger Technology Corporation
- Selectively powering an electrical submersible pump assembly15 Sep 2026US 12,735,964 B2Saudi Arabian Oil Company
- Progressive cavity pump system having reverse mode8 Sep 2026US 12,729,682 B2Schlumberger Technology Corporation
- Isolation system and method for well site applications11 Aug 2026US 12,704,550 B2Schlumberger Technology Corporation
- Production method with a plunger lift system14 Jul 2026US 12,680,427 B2Saudi Arabian Oil Company
- Apparatus for rotating a sucker rod string having a position indicator8 Oct 2026US 2026/0311586 A1
- Downhole tool, well system, and method for ammonia or methanol production1 Oct 2026US 2026/0298051 A1Halliburton Energy Services.Inc.
- System and Method for Non-Magnetic and Touchless Sucker Rod Inspection and Evaluation1 Oct 2026US 2026/0298073 A1
- Systems and Methods for Diagnosing Operational Conditions of a Well Pumping System24 Sep 2026US 2026/0286833 A1
- Determining electrical submersible pump lifetime expectancy24 Sep 2026US 2026/0286834 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Real-time pump optimization system267US 6,041,856 APatton Enterprises, Inc. · 2000
- Real-time pump optimization system217US 5,941,305 APatton Enterprises, Inc. · 1999
- Method and system for controlling a mechanical pump to monitor and optimize both reservoir and equipment performance192US 5,006,044 A1991
- Systems and methods for exchanging fracturing components of a hydraulic fracturing unit180US 10,954,770 B1BJ Energy Solutions, LLC · 2021
- Pump integrity detection, monitoring and alarm generation171US 10,317,875 B2BJ Services Company · 2019